/*-
 * Copyright (c) 2006, 2007 FTS Team
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the FTS Team nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      ReadLine.cpp
 *
 * $FTS$
 */

#include <ReadLine.hpp>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef _USE_READLINE
#include <readline/readline.h>
#include <readline/history.h>
#endif

namespace FTSS // FullTextSearchSystem
{

#ifdef _USE_READLINE

//
// Initial setup
//
void ReadLine::Setup()
{
	using_history();
}

//
// Get line from standard input
//
CHAR_P ReadLine::GetLine(CCHAR_P szPropmt)
{
	char * szLine = readline(szPropmt);
	if (szLine == NULL) { return NULL; }

	add_history(szLine);

return szLine;
}

#else // No readline library

//
// Initial setup
//
void ReadLine::Setup()
{
	;;
}

//
// Get line from standard input
//
CHAR_P ReadLine::GetLine(CCHAR_P szPropmt)
{
	char szBuffer[8192];
	fprintf(stdout, "%s", szPropmt);
	fflush(stdout);

	if (fgets(szBuffer, 1024, stdin) != NULL)
	{
		return strdup(szBuffer);
	}

return NULL;
}

#endif

//
// Free memory
//
void ReadLine::DestroyLine(CHAR_P * szLine)
{
	if (szLine != NULL) { free(szLine); }
}


} // namespace FTSS
// End.
